:root { color-scheme: light; --paper: #f7f5ef; --white: #fffefb; --ink: #252e2c; --muted: #586460; --green: #1f6454; --line: #d5dbd4; --soft: #edf0e8; --serif: Georgia, 'Times New Roman', serif; --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; }
:root[data-color="sand"] { --paper: #eee4d1; --white: #f8f0e2; --ink: #302b23; --muted: #655b4c; --line: #cfc1aa; --soft: #e3dbc9; }
:root[data-color="night"] { color-scheme: dark; --paper: #182320; --white: #1e2c27; --ink: #eeeede; --muted: #b8c5bb; --line: #48594f; --green: #a2d7b9; --soft: #25372d; }
* { box-sizing: border-box; }
html { scroll-behavior: auto; scroll-padding-top: 20px; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 1rem/1.65 var(--sans); overflow-wrap: break-word; }
a { color: var(--green); text-underline-offset: 5px; touch-action: manipulation; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--green); outline-offset: 4px; }
[hidden] { display: none !important; }
.skip { position: absolute; top: -100px; left: 20px; background: var(--paper); padding: 12px; z-index: 2; }
.skip:focus { top: 12px; }
.page { max-width: 1160px; margin: auto; padding: 0 20px; }
.masthead { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 650; font-size: 1.0625rem; letter-spacing: -.03em; text-decoration: none; min-height: 44px; }
.mark { display: grid; place-items: center; width: 29px; height: 33px; border: 1px solid var(--green); border-radius: 2px 8px 2px 2px; color: var(--green); font: 1.125rem var(--serif); }
.masthead nav { display: flex; gap: 18px; }
.masthead nav a { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted); font-size: .8125rem; text-decoration: none; }
.welcome { padding: 30px 0; }
.eyebrow { color: var(--green); font-size: .6875rem; font-weight: 650; letter-spacing: .12em; text-transform: uppercase; margin: 0 0 12px; }
h1 { font: normal clamp(2.25rem, 7vw, 3.5rem)/1.14 var(--serif); letter-spacing: -.045em; margin: 0 0 14px; }
.welcome > p:last-child { color: var(--muted); max-width: 560px; margin: 0; font-size: 1rem; }
.section-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 18px; margin-bottom: 14px; }
.section-heading h2 { font: 600 .875rem/1.5 var(--sans); margin: 0; }
.section-heading > span { color: var(--muted); font-size: .75rem; }
.feature-layout { border: 1px solid var(--line); border-top: 3px solid var(--green); background: var(--white); }
.feature-copy { padding: 24px; }
.feature-top { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.feature-top .eyebrow { margin-bottom: 26px; }
.issue { color: var(--muted); font: .75rem var(--sans); }
.topic { color: var(--muted); font-size: .8125rem; margin: 0 0 12px; }
.feature-copy h3 { font: normal clamp(2.5rem, 8vw, 3.5rem)/1.08 var(--serif); letter-spacing: -.045em; margin: 0 0 18px; max-width: 12ch; }
.feature-copy h3 a { color: var(--ink); text-decoration: none; }
.dek { max-width: 440px; font: 1.1875rem/1.6 var(--serif); margin: 0 0 24px; }
.essay-facts { padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0 0 24px; display: grid; grid-template-columns: 1fr; gap: 12px; }
.essay-facts div { display: grid; grid-template-columns: 88px 1fr; gap: 12px; }
.essay-facts dt { color: var(--muted); font-size: .75rem; }
.essay-facts dd { margin: 0; font-size: .8125rem; }
.read-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 36px; min-height: 48px; width: 100%; padding: 11px 18px; background: var(--green); color: var(--paper); font-size: .875rem; font-weight: 550; border-radius: 3px; text-decoration: none; }
.continue { font-size: .8125rem; margin: 12px 0 0; }
.continue a { display: inline-flex; align-items: center; min-height: 44px; }
.essay-outline { border-top: 1px solid var(--line); background: var(--paper); padding: 24px; }
.outline-heading h3 { font: 600 .9375rem/1.5 var(--sans); margin: 0 0 4px; }
.outline-heading p { color: var(--muted); font-size: .8125rem; margin: 0 0 18px; }
.question-list { list-style: none; margin: 0; padding: 0; }
.question-list li { border-top: 1px solid var(--line); }
.question-list a { display: grid; grid-template-columns: 22px 1fr 12px; align-items: baseline; gap: 12px; padding: 16px 0; text-decoration: none; }
.question-number { font-size: .6875rem; color: var(--green); font-variant-numeric: tabular-nums; }
.question-list strong { display: block; font: 1.0625rem/1.4 var(--serif); color: var(--ink); }
.question-list small { display: block; color: var(--muted); font-size: .75rem; line-height: 1.6; margin-top: 4px; }
.arrow { font: .875rem var(--sans); color: var(--green); }
.question-list a:hover strong, .tool-links a:hover strong { text-decoration: underline; text-underline-offset: 4px; }
.evidence-links { display: flex; flex-wrap: wrap; gap: 0 20px; border-top: 1px solid var(--line); padding-top: 8px; }
.evidence-links a { display: inline-flex; align-items: center; min-height: 44px; gap: 6px; font-size: .75rem; }
.topics { margin-top: 32px; }
.topic-grid { display: grid; border: 1px solid var(--line); }
.topic-grid > section { padding: 22px; }
.topic-grid > section + section { border-top: 1px solid var(--line); }
.topic-grid .eyebrow { font-size: .625rem; margin-bottom: 8px; }
.topic-grid h3 { font: normal 1.4375rem/1.3 var(--serif); margin: 0 0 12px; letter-spacing: -.025em; }
.topic-grid ul { list-style: none; padding: 0; margin: 0; }
.topic-grid a { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 44px; padding: 8px 0; font-size: .8125rem; line-height: 1.5; }
.reading-tools { margin: 32px 0; }
.tool-links { border: 1px solid var(--line); }
.tool-links > a { display: grid; grid-template-columns: 28px 1fr 12px; align-items: center; gap: 16px; padding: 20px; text-decoration: none; }
.tool-links > a + a { border-top: 1px solid var(--line); }
.tool-symbol { font: 1.5rem var(--serif); color: var(--green); width: 26px; height: 26px; white-space: nowrap; }
.tool-links strong { display: block; font-size: .875rem; font-weight: 600; color: var(--ink); }
.tool-links small { display: block; font-size: .8125rem; line-height: 1.65; color: var(--muted); margin-top: 4px; }
.about { border-top: 1px solid var(--line); padding: 28px 0 34px; }
.about h2 { font: 600 .875rem/1.5 var(--sans); margin: 0 0 16px; }
.about p { color: var(--muted); font-size: .9375rem; line-height: 1.8; margin: 0 0 12px; max-width: 660px; }
.about p:last-child { margin-bottom: 0; }
footer { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: .75rem; }
footer > span { color: var(--ink); font-weight: 600; font-size: .8125rem; }
footer p { margin: 6px 0; }
footer a { display: inline-flex; align-items: center; min-height: 44px; }
@media (min-width: 760px) {
 .page { padding: 0 40px; }
 .masthead { padding: 20px 0; }
 .brand { font-size: 1.25rem; }
 .masthead nav { gap: 28px; }
 .welcome { padding: 44px 0 38px; }
 .welcome > p:last-child { font-size: 1.0625rem; }
 .feature-layout { display: grid; grid-template-columns: 1fr 1fr; }
 .feature-copy { padding: 32px; }
 .essay-outline { padding: 28px 32px; border-top: 0; border-left: 1px solid var(--line); }
 .feature-top .eyebrow { margin-bottom: 42px; }
 .read-link { width: auto; min-width: 200px; }
 .topic-grid { grid-template-columns: repeat(3, 1fr); }
 .topic-grid > section + section { border-top: 0; border-left: 1px solid var(--line); }
 .tool-links { display: grid; grid-template-columns: 1fr 1fr; }
 .tool-links > a + a { border-top: 0; border-left: 1px solid var(--line); }
 .about { display: grid; grid-template-columns: 1fr 3fr; gap: 32px; padding: 32px 0; }
 footer { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; }
 footer p { margin-right: auto; }
}
@media (max-width: 540px) {
 .masthead { padding-bottom: 0; }
 .masthead nav { width: 100%; border-top: 1px solid var(--line); justify-content: space-between; gap: 12px; padding-top: 3px; }
 .masthead nav a { font-size: .8125rem; }
}
@media (max-width: 360px) {
 .page { padding: 0 16px; }
 .masthead { gap: 4px 12px; }
 .brand { font-size: 1rem; gap: 8px; }
 .mark { width: 24px; height: 28px; }
 .masthead nav { gap: 12px; }
 .masthead nav a { font-size: .75rem; }
 .feature-copy, .essay-outline { padding: 20px; }
 .question-list a { gap: 8px; grid-template-columns: 18px 1fr 10px; }
 .tool-links > a { gap: 12px; padding: 18px; }
}
@media print { .skip, .read-link, .continue, .reading-tools, footer a { display: none; } body { background: #fff; color: #222; } }